Aeroshell 100, 120 or 15w-50/w100 plus?
At 50 hours on a new IO-390, about to do an oil change to Aeroshell 100 (from 80).
Here in Alabama most of the summer is 85-100 degrees.
Right now I'm only burning about 1/4qt of 80 every 5 hours.
Based on this should my 100 hour be 15w-50, w100 Plus, or should I stick with the mineral oil?
At 50 hours on a new IO-390, about to do an oil change to Aeroshell 100 (from 80).
Here in Alabama most of the summer is 85-100 degrees.
Right now I'm only burning about 1/4qt of 80 every 5 hours.
Based on this should my 100 hour be 15w-50, w100 Plus, or should I stick with the mineral oil?
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